Stationary fire-extinguisher system.



R. L. CO-ONEY. STATIONABY FIRE EX'IHYJGUISHEB.l SYSTEM.

AIPBBIUATION FILED NOV. 29, 1909.

Patented' 0013. 7, 1913.

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entran sfrafrns Partnr ernten mesurer L. ooounr, or .ar-Laura, esonera.

STlIONB/Y FIRE-EXTINGUISHEB SYSTEM.

Specification of Letters atenft.

Patentedct. 7, 1913,

Application filed November 29, 1909. Serial No. 530,469.

' This invention relates lto new and useful nnprovements 'in stationaryre extinguisher systems of the .chemical mixing type.

The primary .object of .the invention is a .novel arrangement in whichthe developed high pressure incident to the .chemical mixaction isutilized to operate secondary tine extinguisher agent ,supply means in acertain, .quick and reliable manner and with but expenditure of pressureenergy.

.All enllhodiment .of the invention is shown lo way of example in theaccompanying lawing, in vvlliili the figure is a longtiudr nal sectionalview of an apparatus in accordlance with the ,present invention.

.Similar characters of reterence refer to corresponding parts.

The character `of the chemical mixing apparatus is not essential. Theapparatus shown as an example .and which forms the basis of my'application Serial No. 540,551 5enerall-y comprehends 4a tank., as 1,and a istributing p e, as 2, from which branches lead to the dierent.parts .of the building which it is ydesired to protect. The tanlt 1 isconnected to the pipe 2 by a secondary, z', e., elastic iiuidcontaining), shell, as 3, to w ich a [barrel 4 is connected. The barrel4- projects into the tank 1 and therein is provided with a dependingpipe, as 5, through which the fire extinguishin agent flovvsto thedistributing system. ithin the barrel 4 is a rod 6 Which projectsinwardly into the tank through an enlarged opening, as 7. The rod l 6 isprovided with a head 8 which Works inf the shell 3 and normally closesthe end of the barrel 4, and also with ahead 9, within the tank 1, andwhich, when the system is Working, closes the opening 7. The acidbottle, as 10, is ivoted o center on a'supporting standart?, as 11, andto the upper end of the acid bott-le a chain, as 12, is connected, thesaid chain being in turn connected to the inner end of the rod 6. Thebottle 10 has a removable closure 10a.

In the foregoing apparatus, when the dominant pressure in the pipe 2 isreduced as by the opening of a sprinkler head, the

servient pressure in the tank 1 operates positively, z'. c., byexpansion or projection, to cause an operative movement of the piston 8.This movement produces the overturning of the bottle 10 and theresultant chemical mixing action, it being understood that the tank 1contains an alkaline solution. Any desired means for equalizing thepressure in the tank and in the distributing pipes and therebycompensating for leakages may be'employed. For convenience, a pipe 13,containing a pressure indicator 14, may lead from the pipe 2 and beconnected to the tank 1 by -a pipe 15 containing an aperture diaphragmor Web 16.

The developed ressure, incident to the generation set up 1n the tank 1,is empio, ed to operate a secondary lire extinguis er agent supplymea-ns in a novel manner- The secondary supply means shown herein'by wayof example involves a service pipe 17 which projects into the tank 1,and a valve 18 for normally closing the end of the service pipe. Anetiicient valve construction includes an arm 1'9, carrying the valve 18,and ,pivoted at its lower end .to a bracket 19a. The force with whichthe valve 18 h eais against the end of the service pipe may be regulatedby an adjusting stem 20 which is.

threaded through the arm 19 and to the inner end of which the valve 18is secured. `By virtue of this arrangement., leakage from the serv-icepipe into the -tank may be rendered impossible. The valve 18 is lheldnormally closing the pipe 17, preferably by a pivoted latch lever .21,which has a nose or projection 2l to engage the free lend of the arm 19.

The means for operating the Secondary supply means consists essentiallyof a cylin der Q2 which is in open communication with the fan'k and apiston which moves axially of the cylinder and has but a singleoperative stroke. This piston, designated by the numeral 22a, is in theembodiment shown, fitted in the cylinder and is provided with a stem, as23, which depends into the tank. This stem, at its lower end, is rovidedwithV a slot, as 24, through which ghe free end p0rtion of the latch 2lprojects. The iston ice 22 normally rests by gravity at the ovver end ofthe cylinder 22. The developed high pressure incident to the chemicalmixing 'action raises the piston 22 and causes thereby llt) the liftingof the latch lever 21. It follows that the valve 18 is 'released andwhen the claim:

pressure in the tank is suiiiciently low, assumes its open position sothat a secondary extinguishing agen t, t. e., 1n the present 1nvstance,Water, willv dow through the tank and into the distributing system.

I am aware of the construction shown in the U. S. Patent to C. A.. Teal,No. 724968, of April Y, 1903, wherein the high pressure incident to thechemical mixing action is utilized to operate a secondary supply pump.

Having fully described my invention, I

l. .In a lire extinguisher system, in combination, a distributing pipe,primary tire extinguisher agent supply means consisting of a chemicalmixing apparatus, secondary tire extinguishing agent supply means, meansfor producing a chemical mixing operation and means operable by thedeveloped pressure incident to the mixing operation to provide for anoperation of the secondary means, and consisting of a cylindercommunicating with the tank, a plunger having a single operative strokeaxially of the cylinder and operative connections between the plungerand the secondary supply means.

2. In a firel extinguisher system, in combination, a distributing pipe,a service pipe, a valve controlling the service pipe, chemical mixingapparatus, means for causing a chemical mixing operation, and meansnormally holding the valve closed and directly operable by the developedpressure incident to the generation set up by the chemical mixingoperation to release the service pipe valve and to thereby provide forthe open ing thereof.

3. In a tire extinguisher system, the combination with chemical mixingmeans and operating means therefor, of a service ipe, a valvecontrolling the same, a latch ever normally holding the valve closed,and an element movable by the pressure developed incident to thechemical mixing operation to operate the latch lever to release thevalve and to thereby provide for the opening thereof.

4. In a tire extinguisher system, the combination with a fluid` drivenpiston, a service pipe, a valve therefor, a pivoted member carrying thevalve, a latch lever normallyvengaging the pivoted member to hold thevalve closed, and operatively connected with the piston, and means fordeveloping an elastic fluid impulse to drive the piston.

5. In a fire extinguisher system, a chemical mixing tank, secondary tireextinguisher agent supply means, a cylinder tted to the tank in endvvisecommunication therewith, and a plunger movable axially of the cylinderby the developed pressure incident to the chemical mixing action andoperative in a single stroke to provide for an operation o the secondarysupply means.l

6. In a lire extinguisher system, in combination, a distributing pipe,primary fire ex tinguisher agent supply means consisting of a chemicalmixing apparatus, secondari-'ry agent supply means comprising a servicepipe, a valve controlling the same and a latch lever for the valve,means for producing a chemical mixing operation, and means operable bythe developed pressure incidentto the chemical mixing action to providefor the operation of the secondary means and consisting of a cylindercommunicating with the tank and a plunger having a single operativestroke axially of the cylinder and operatively connected to the latchlever.

7. In a re extinguisher system, a chemical mixing tank, secondary tireextinguisher agent supply means including a fluid driven controllingelement having a single operative stroke and a-cylinder in communicationwith the tank and associated with the element to provide :tor the directoperation of the latter by the developed pressure incident to thechemical mixing action.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

RBERT L. COONEY.

Witnesses.:

S. Grans, H. LooMER, .IrJ

@Soph-:s ef this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents. Washington, G.

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